PA18-3A

Regulated DC Power Supplies PA18-3A

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Outline

Designed to be both compact? and to provide high performance? the PA-A Series of series-regulated CV/CC power supplies have been developed to offer high reliability and stability? and to provide simultaneous digital display of both output voltage and current. The product line includes the 18V? 36V? 70V? and 250V models to allow selection according to individual needs. The output can be boosted by single-control series and parallel connections? and remote control enables easy use of these compact? lightweight power supplies in applications such as R&D? aging and as systems power supplies.

Features

●Low Ripple, Low Noise Series regulation achieves extremely low ripple and noise, as well as a very low temperature coefficient and excellent electrical characteristics. ●Simultaneous Digital Readout of Both Voltage and Current Voltage is displayed on a 3-1/2 digit LED display (auto-ranging) and current is displayed on a 3-digit LED display, enabling checking and setting of both voltage and current simultaneously. Constant-voltage and constant-current operations are indicated by green and red LEDs, respectively. ●Series Operation, Parallel Operation Several power supplies can be connected in series to boost output voltage capability, or in parallel to boost output current capability. In addition, with either connection method, master-slave mode of operation enables you to control the output from just one of the connected supplies. ●Floating Output Method Because the output terminals are floating, operation is possible as either a positive or negative power supply. Output sensing terminals are provided on the front panel for precise setting of the voltage actually applied to the load terminals. ●OUTPUT on Fixing By setting the LOCAL/REMOTE switch on the rear panel to REMOTE, the OUTPUT key is isolated so that the output can be fixed to on while the power is on. Usually, the output can be switched on and off using the switch on the front panel. ●Wide Remote Control Capability A remote control connector is provided on the rear panel, enabling external contact-closure signals to perform the output on/off control. In addition, the output voltage and current can also be controlled by either an external voltage or resistance. ●GP-IB Capability (Optional) By using the GP-610A GP-IB adapter, GP-IB control of the output on/off status, the output voltage and the output current is possible. Also, by incorporating the OP-13A in a power supply of the PA-A Series, it is possible to control the output on/off status and SRQ function. ●Applications ●R&D. ●Aging. ●Systems.  ● Battery charging. ●School and education. ●SPECIFICATIONS Model PA18-1.2A PA18-3A PA36-1.2A PA36-3A PA70-1A PA250-0.42A Output voltage (continuously variable? with coarse and fine adjustments) 0 to 18V 0 to 36V 0 to 70V 0 to 250V Output current (continuously variable) 0 to 1.2A 0 to 3A 0 to 1.2A 0 to 3A 0 to 1A 0 to 0.42A Voltage regulation characteristics (CV) Model PA18-1.2A PA18-3A PA36-1.2A PA36-3A PA70-1A PA250-0.42A Line regulation (with respect to ±10% variation in AC) 1mV 2mV 5mV 15mV Load regulation (with respect to change from 0 to 100%) 2mV 3mV 2mV 4mV 5mV 15mV Ripple/noise (10Hz to 1MHz) 0.5mVrms 1mVrsm 2.5mVrms Transient response (output current : 5% to 100%) 50μs Typ Temperature coefficient 100ppm/°C Typ Remote control (External voltage/output voltage ratio) Approx. 10V/18V Approx. 10V/36V Approx. 10V/70V Approx. 10V/250V Remote control (External resistance/output voltage ratio) Approx. 10kΩ/18V Approx. 10kΩ/36V Approx. 10kΩ/70V Approx. 10kΩ/250V Current regulation characteristics (CC) Model PA18-1.2A PA18-3A PA36-1.2A PA36-3A PA70-1A PA250-0.42A Line regulation (with respect to ±10% variation in AC) 2mA 1mA Load regulation (with respect to change from 0 to 100%) 10mA 15mA 10mA Ripple/noise (10Hz to 1MHz) 1mArms 2mArms 1mArms Remote control (External voltage/output current ratio) Approx. 10V/1.2A Approx. 10V/3A Approx. 10V/1.2A Approx. 10V/3A Approx. 10V/1A Approx. 10V/0.42A Remote control (External resistance/output current ratio) Approx. 10kΩ/1.2A Approx. 10kΩ/3A Approx. 10kΩ/1.2A Approx. 10kΩ/3A Approx. 10kΩ/1A Approx.10kΩ/0.42A Constant-voltage operation display Green LED lights for CV Constant-current operation display Red LED lights for CC Digital meter display Model PA18-1.2A PA18-3A PA36-1.2A PA36-3A PA70-1A PA250-0.42A Voltmeter display (3-1/2 digits? red LED) Maximum 19.99V display? fixed range Maximum 19.99V/99.9V display? autorange Max.19.99V/999V autoranging Accuracy (output on 23°C±5°C? 80%RH or less) ±(0.2%rdg 1digit) ± (0.2%rdg 2digit) Ammeter display (3 digits? red LED) Maximum 9.99A display? fixed range Maximum 999mA display? fixed range Accuracy (output on 23°C±5°C? 80%RH or less) ±(1.0%rdg 2digit) ± (1.0%rdg 3digit) Sampling rate 2.5 times/1 sec. 2.5 times/1 sec. Functions Model PA18-1.2A PA18-3A PA36-1.2A PA36-3A PA70-1A PA250-0.42A Output switch ( on/OFF) Red LED lights when output on Remote sensing Front panel ( S) and (-S) terminals provided  Series operation (master-slave) Single-control series operation (with in groundable voltage limits) Parallel operation (master-slave) Single-control parallel operation (only for power supplies of the same model)  Output Model PA18-1.2A PA18-3A PA36-1.2A PA36-3A PA70-1A PA250-0.42A Polarity Positive or negative side groundable Output terminals (red)? - (white)? and GND (black) Groundable voltage ±500V　DC Operating environment Model PA18-1.2A PA18-3A PA36-1.2A PA36-3A PA70-1A PA250-0.42A Temperature/humidity for characteristics in spec. 0 to 40°C? 10 to 85%RH Cooling system Natural draft Power consumption :VA/W (at 100V AC? with rated load) Approx. 60VA/45W Approx. 125VA/100W Approx. 105VA/73W Approx. 225VA/175W Approx. 140VA/110W Approx. 200VA/155W Power requirement 100V±10% AC? 50/60Hz? 120V/240V±10% (MAX AC250V) internally switchable Case dimensions (W×H×D) mm 104×147×186 104×147×224 104×147×186 138×147×239 104×147×224 138×147×239 Maximum dimensions (W×H×D) mm 108×161×200 108×167×265 108×161×200 142×167×290 108×167×265 142×167×290 Weight Approx. 4.0kg Approx. 5.6kg Approx. 4.6kg Approx. 7.3kg Approx. 5.7kg Approx. 7.0kg Accessories Instruction manual×1? Sensor plug×2